Gert-Jan read criminal law and constitutional and administrative law in Utrecht. He is specialised in corporate criminal law. His areas of focus include complex (industrial) calamities and industrial accidents, environmental criminal law, economic criminal law and corruption-related cases. His specialisms also include the sanctions law related to government agencies (criminal prosecution of public law legal entities, breaches of confidentiality and integrity investigations).
Gert-Jan has assisted various multinationals, listed companies, lower governments and their directors. He inter alia lectures on economic criminal law for the Judiciary Training Institute and is a member of the Advisory Committee on Regulations of the Netherlands Bar Association. Gert-Jan is a member of the Dutch Association of Criminal Law Practitioners and the Association for Administrative Law (VAR).
Minister en burgemeester lopen risico op vervolging | Het Financieele Dagblad, 20 oktober 2015.
Hoe integer zijn integriteitsonderzoeken? | Sanctierecht & Onderneming 2015, nr. 2/3, pp. 108-109.
Wees bewust van keerzijde ongevalonderzoek | Petrochem, 2013, nr. 12, pp. 44-45.